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Lab Practical #2
bones, skeletal muscles
| Question | Answer |
|---|---|
| Bones of the cranium | Frontal bone, Parietal bones, Temporal bones, Occipital Bone, Sphenoid bone, Ethmoid Bone. |
| Auditory Ossicles | Malleus (hammer), Incus (anvil) Stapes (stirrup) |
| Paranasal Sinuses | frontal, maxillary, sphenoid, ethmoid |
| Fontanelles | anterior, posterior, mastoid, sphenoidal |
| Regions of the Vertebral Column | cervical, thoracic, lumbar, sacral, coccyx |
| Number of cervical vertebrae | 7 |
| Number of thoracic vertebrae | 12 |
| Number of lumbar vertebrae | 5 |
| Number of fused vertebrae in the sacrum | 5 |
| Number of fused vertebrae in the coccyx | 4 |
| Thoracic cage | thoracic vertebrae, sternum and ribs |
| Number of pairs of ribs | 12 |
| Number of pairs of true ribs | 7 |
| Number of pairs of false ribs | 5 |
| Number of pairs of floating ribs | 2 |
| Cartilage that connects ribs to the sternum | costal cartilage |
| What feature do cervical vertebrae have that other vertebrae do not? | transverse foramens |
| Horseshoe shaped bone located inferior to the mandible | hyoid bone |
| These structures compose the nasal septum | vomer bone and perpendicular plane |
| These bones comprise the hard palate | palatine process of the maxilla and palatine bone |
| Sutures of the skull | coronal suture, sagittal suture, squamous suture, lambdoid suture |
| Large hole in the base of the skull where the spinal cord connects to the brain | foramen magnum |
| cranial cavity | cavity that houses the brain |
| Tempomandibular joint | mandibular fossa + mandibular condyle |
| Suture that separates the two parietal halves | sagittal suture |
| Suture that separates the frontal bone from the two parietal bones | coronal suture |
| Suture that separates the temporal bones from the parietal bones | squamous suture |
| Suture that separates the occiptal bone from the parietal bones | lambdoid suture |
| What passes through the mandibular foramen and the mental foramen? | Nerves |
| Socket of bone that contain teeth | alveolus |
| What passes through the lacrimal fossae? | tear ducts |
| Pectoral Girdle | clavicle and scapula |
| Upper Extremity | Humerus, Radius, Ulna, Carpus, Metacarpus, Phalanges |
| Pelvic Girdle | Coxal bones, pubic symphysis |
| Lower Extremity | Femur, Patella, Tibia, Fibula, Tarsus, Metatarsus, Phalanges |
| Sternocleidomastoid, Origin | Manubrium of sternum and medial portion of clavicle |
| Sternocleidomastoid, Insertion | Mastoid process of temporal bone |
| Sternocleidomastoid, Action | Flexes and laterally rotates head |
| Pectoralis Major, Origin | Sternal end of clavicle, stermum and first to seventh costal cartilages |
| Pectoralis Major, Insertion | Greater tubercle of humerus |
| Pectoralis Major, Action | flexes arm; adducts arm; roates arm medially |
| Deltoid, Origin | Acromion and spine of scapula; lateral third of clavicle |
| Deltoid, Insertion | Deltoid tuberosity of humerus |
| Deltoid, Action | Abducts arm |
| Trapezius, Origin | Occipital bone; spines of thoracic vertebrae |
| Trapezius, Insertion | Lateral third of clavicle; acromion and spine of scapula |
| Trapezius, Action | Stabilizes, elevates, depresses and retracts (adducts) scapula; extends head |
| Latissimus Dorsi, Origin | Spines of lower six thoracic vertebrae; lumbar vertebrae; lower four ribs; iliac crest |
| Latissimus Dorsi, Insertion | Intertubercular sulcus of humerus |
| Latissimus Dorsi, Action | Extends arm; adducts arm; roates arm medially |
| Biceps Brachii, Origin | Coracoid process of scapula; supraglenoid tubercle of scapula |
| Biceps Brachii, Insertion | Proximal radius |
| Bicepts Brachii, Action | flexes forearm |
| Triceps Brachii, Origin | Infraglenoid tubercle of scapula; posterior shaft of humerus |
| Triceps Brachii, Insertion | Olecranon process of ulna |
| Triceps Brachii, Action | Extends forearm |
| Gluteus Maximus, Origin | Dorsal ilium; sacrum; coccyx |
| Gluteus Maximus, Insertion | Gluteal tuberosity of femur; iliotibial tract |
| Gluteus Maximus, Action | Extends thigh; laterally rotates and abducts thigh |
| Adductor Muscles, Origin | Pubis; ischial tuberosity |
| Adductor Muscles, Insertion | Femur, tibia |
| Adductor Muscles, Action | Adduct Thigh |
| Quadriceps Femoris, Origin | Femur |
| Quadriceps Femoris, Insertion | Quadriceps tendon which inserts into patella and then my way of patellar ligament into tibial tuberosity |
| Quadriceps Femoris, Action | Extend leg, flex thigh |
| Hamstrings, Origin | Ischial tuberosity |
| Hamstrings, Insertion | Tibia, fibula |
| Hamstrings, Action | Flex leg, extend thigh |
| Sartorius, Origin | Anterior superior iliac spine |
| Sartorius, Insertion | Medial surface of proximal tibia |
| Sartorius, Action | Flexes thigh, rotates thigh laterally and allows leg cross, flexes leg |
| Gastrocnemius, Origin | LAteral and medial condyles of femur |
| Gastrocnemius, Insertion | Posterior calcaneus by way of calcaneal ("Achilles") tendon |
| Gastrocnemius, Action | Plantar flexion of foot, flexes leg |
| Tibialis Anterior, Origin | Proximal two-thirds of tibia |
| Tibialis Anterior, Insertion | Tarsal and Metatarsal |
| Tibialis Anterior, Action | Dorsiflexion of foot |
| Masseter, Action | raise the mandible to close the jaw |
| Temporalis, Action | acts with masseter to raise mandible |
| Lateral Pterygoid, Action | moves mandible from side to side, protracts mandible |
| Medial Pterygoid, Action | acts with masseter and temporalis to raise mandible, protracts mandible, moves mandible from side to side |
| Buccinator, Action | Compresses cheek, holds food between teeth for chewing, produces sucking action, participates in smiling and frowning |
Created by:
pinklrt98
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